BERNINA International AG Seestrasse 161 CH-8266 Steckborn Schweiz Seite 112 von 172
DRAFT – VERSION
5.9 Threader
Check:
• Remove needle. Attach threader gauge 734101.50.00.
• Set needle bar to top dead center.
• Push threader downward until threader head turns in under the gauge
Adjustment:
• Remove basting solenoid housing 51 if there is one.
• Untighten needle bar guide adjusting screw 17 (T8).
• The threader head can be properly adjusted by moving it up, or down.
• Retighten needle bar guide adjusting screw 17 (T8).
Refit basting solenoid housing.
5.10 Basting Device
5.10.1 Needle bar guide
Check:
• Set needle bar to bottom dead center (BDC).
• Disengage needle bar manually via basting solenoid clutch 1.
• Twist needle bar to the left 2 and pull down 3, ensuring that the clutch pin that gears into the needle
bar engages smoothly.
• Set needle bar back to BDC and release again 1.
• Check in the same manner by twisting needle bar to the right 2.
Adjustment:
• Remove basting solenoid housing 51.
• Set needle bar to top dead center (TDC).
• Remove needle. Attach threader gauge 734101.50.00.
• Push threader 10 downward until threader head turns in under the gauge. Hold threader in this
position.
• Untighten needle bar guide adjusting screw 17 (T8).
• Center needle bar bore within clutch-bolt clearance 4.
• Retighten needle bar guide adjusting screw 17 (T8).
Refit basting solenoid housing.
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